Question

Writing an equation of a line given its slope and y-intercept

Write an equation in slope-intercept form for the line with slope -3 and y-intercept 4.

Answer 1

y=-3x+4

Explanation:

Slope-intercept form is y=mx+b

where m is the slope and b is the y-intercept.

m=-3 because -3 is the slope.

b=4 because 4 is the y-intercept.

Let's plug that into y=mx+b giving us y=-3x+4.

Answer 2

Slope intercept form is
`y=mx+b \to y=-3x+4`